def citations(self):
entries = self.BIBTEX_ENTRIES[:]
recurse_bibtex(self, entries)
all_citations = [Entry.from_string(b, 'bibtex')
for b in entries]
return unique_citations_only(all_citations)
def deserialize(self, string): # Entry.from_string
return Entry.from_string(string, self.bib_format)